Group 1 alkali metals react vigorously with Group 7 halogens to form ionic salts.
Four examples of these reactions are shown in the table below.
| Reaction | Word equation |
|---|---|
| A | sodium + chlorine → \rightarrow\,→ sodium chloride |
| B | lithium + bromine → \rightarrow\,→ lithium bromide |
| C | rubidium + fluorine → \rightarrow\,→ rubidium fluoride |
| D | potassium + iodine → \rightarrow\,→ potassium iodide |
Explain, in terms of the electronic configurations and the relative reactivity of these elements, which of the reactions (A, B, C, or D) would be the most violent.
Practise Edexcel GCSE Chemistry Group 1 with exam-style questions for Foundation and Higher tier. 51 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
